Flatworm Solution is safe for both reef and fish-only marine aquariums. For best results, perform a 25% water change once results are visible after use. Make sure to siphon out as many flatworms as possible. Repeat treatment as necessary but do not dose more than one treatment in a 24-hour period. Add four drops for every ten gallons. 1 oz (30 ml) bottle treats 400 gallons. Shop all aquarium Pest Traps & Control. Please click on "More Information" for directions and usage tips. | ||||||















